herohero (higashi no dou), mejiro ardan (umamusume), umamusume, highres, 1girl, bare shoulders, blue hair, blush, braid, breasts, clothing cutout, crop top, crown braid, ear ornament, fingernails, frilled skirt, frills, heart, heart hands, huge breasts, layered skirt, long hair, looking at viewer, midriff, official alternate costume, open mouth, pink shirt, pink skirt, purple eyes, shirt, shoulder cutout, simple background, skirt, smile, solo, very long hair, white background